SRAM XX1 Eagle Carbon Boost Crankset - 170mm 12-Speed 34t Direct Mount DUB Spindle Interface BLK MFPN=IRTCL900SI 7000 series alloy construction with

7000 series alloy construction with matte finish

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Forged aluminum

Where it differs

SRAM XX1 Eagle Carbon Boost Crankset - 170mm 12-Speed 34t Direct Mount DUB Spindle Interface BLK MFPN=IRTCL900SI 7000 series alloy construction withSRAM XX1 Eagle Carbon Boost Crankset 170mm 12 Speed 34t Direct Mount DUB Spindle Interface Black. The XX1 Eagle crankset features a special hollow internal architecture combined with SRAMs Carbon Tuned technology to provide extreme stiffness and light weight. An X SYNC 2 chainring offers significantly quieter performance with better mud clearing and extraordinary durability. As a part of the SRAM Eagle ecosystem this crankset was developed for a